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Practical Standalone Tuning: Step 2: Trigger Setup

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Step 2: Trigger Setup


00:00 - The next step of the process is to have a look at our trigger setup so that the ECU's getting the correct information from this particular engine and it knows what the RPM and engine position is.
00:12 So in the PC Link software if we go through to the triggers menu and we look at trigger setup.
00:18 this is where we can choose what particular trigger mode we want to use.
00:24 Now you can see we've already got this set to BMW M52 which is the particular trigger mode for this engine.
00:31 If you cycle through though here you can see all of the different modes that Link make available to suit the common engines that they've already decoded.
00:42 So if you've got one of these supported engines, it's really easy, you just click on the correct one, and basically everything will be preconfigured.
00:51 So we start with that by choosing BMW M52.
00:54 But if we go back and have a look at what else is available in this menu, you can see we've got trigger one, and we've got trigger two.
01:03 If we click on trigger one, so this is our RPM sensor, this is giving us the engine RPM.
01:10 And in this case we've got our trigger type, which is set to optical or hall.
01:16 And we've got a filtering level here which is set at level one which is low.
01:22 We would want to start with that low level of filtering unless we really needed to go any higher.
01:27 With a hall sensor, we generally need that pullup resistor on that particular channel turned to on.
01:34 And we've got the option of triggering on either a rising or a falling edge.
01:39 Now this information will generally be set up when you choose that trigger mode.
01:45 Or in the case of an engine that you're not familiar with, you can get the advice on how to set this up from the ECU manufacturer.
01:53 In this case though, these are the correct settings for the BMW M54 engine.
01:59 So let's just have a look though at trigger two, and we've got the same settings here.
02:06 So again we've got a hall sensor, optical hall sensor, we've got our level one low filtering, and the pullup is still turned on, and we've got a falling edge trigger.
02:20 So that's basically everything there set up for the triggering system.